bacon



(No Model.)

O.'BAOON. 'PRIGTION DRUM FOR iNGLINE-D PLANE CABLE RAILWAYS.

Patented Mar. 11

ATTORNEYS.

N. PETERS. PheloLilhogr-Xphnr. wanhin mn. u c

rrnn STATES PATENT rFIcE.

EARLE C. BACON, OF BROOKLYN, ASSIGNOR TO COPELAND & BACON, OF

NEW YORK, N. Y.

FRiCTiON-DRUM FOR lNCLlNED-PLANE CABLE-RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 294,953, dated March11, 1884.

Application filed December a, 1883. (x0 model.)

T0 aZZ whom it may concern:

Beit known that I, EARLE G. BACON, of the city of Brooklyn, in thecounty of Kings and State of New York, have invented a new and ImprovedFriction-Drum for Inclined-Plane Gable-Railways, of which the followingis a full, clear, and exact description.

The object of my invention is to'facilitate the starting ofinclined-plane cable-railway cars.

The invention consists of the several combinations and arrangements ofparts, substantially as hereinafter fully set forth ,and pointed out inthe claims.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figurel is a plan view of my improved friction-drums for inclined-planecable-railways. Fig. 2 is a cross sectional elevation of the same on theline as m, Fig. 1. Fig. 3 is a sectional plan View of the same. Fig. 4is a side view of the frame in which the vertical shaft is j ournaled.

Two grooved drums, A and B, are mounted on short vertical shafts C,journaled in the top and bottom frames, D D, which are securely fastenedto a suitable base at the top of an incline. A cable, E, or chain runsover the two drums in the manner shown, and each end of the cable isconnected with a car running on the inclined plane on separate tracks,said chain or cable being passed to and rove a number of times .aroundthe drums in the direction indicated by the arrow a, both drums beinginclined in each of the coils produced by reeving the cable, asaforesaid. On the shaft 0 of the drum A a cog-wheel, F, is rigidlymounted, and is adapted to engage with a pinion, G, mounted rigidly atthe lower end of a sleeve, H, adapted to slide vertically on a shaft, J,which is journaled in a transverse frame, K, on the top frame, D. Afeather, L, on the shaft J causes the sleeve H to turn with the shaft J,and permits of the vertical adjustment of the sleeve. The prongs of aforked end, M, of a foot-lever, M, pass into an annular groove, N, inthe sleeve H. By means of a latch, O, or other suitable device, the freeend of .the lever M can be locked inthe lowered position. A socket-ring,I, for receiving the ends of poles for turning the shaft, or abeltpulley for the application of power, is mounted rigidly on the upperend of the shaft J. A horizontal ratchet-wheel, Q, is mounted on or madeintegral with the sleeve H, and a pawl, B, pivoted to the frame K, restson the teeth of the ratchet-wheel. Brake-bands S, surrounding the lowersmooth parts, a b, of the drums AB, have their ends attached to alever,T, pivoted to swing in the horizontal plane between the drums. The otherends of the brakebands are attached to rods (1, passing through lugs fof the frame D, and provided with nuts 9 on the threaded ends, for thepurpose of adjusting the tension of the brake-bands.

The operation is as follows: If the cable is to be started, which isnecessary if the loaded car must travel a short distance over a level orslightly-inclined part of the track, the lever M is released, so as topermit the sleeve H to descend and the pinion G to engage with. thecog-wheel F. Then the shaft J is turned by hand or power, and causes thepinion G to turn, which turns the cog-wheel F and the drums A B. As soonas the loaded car has been moved to such an extent that it will moveunder the action of gravity, the sleeve H and the pinion G are raised bydepressing the free end of the lever M, and in this position the leveris locked by means of the latch O or other device. The pinion is thendisengaged from the cog-wheel, and the shaft J will not be turned. Bymoving the free end of the brakelever T laterallyin eitherdirection,both brakebands will be applied. As the cable runs over twodrums, greater strength and safety are obtained than in the usualfriction-drums of cable-railways, in which one drum only is used. As Iuse two brake-bands, I obtain a very large friction-surface for thebrakes, and the speed of the cars can be controlled very easily. Whenthe pinion is engaged with the cog-wheel, the pawl R at all times locksthe pulleys in position as soon as the lever for turning the shaft J isreleased or the power is cut off.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a cable-railway, the combination, with I herein shown anddescribed, and for the purthe cable, of two friction-drums, around whichthe cable passes, and of a brake-band for each drum, substantially asherein shown and described, and for the purpose set forth.

2. In a cable-railway, the combination, with the cable, of twofriction-dru ms, around which the cable passes, a brake band for eachdrum, and of devices for applying both brake-bands simultaneously,substantially as herein shown and described, and for the purpose setforth.

3. In acable-railway, the combination,with the cable, of twofriction-drums, around which the cable passes, a brakeband for eachdrum, and a lever connected with both bands, substantially as hereinshown and described, and for the purpose set forth.

4:. The combination, with a friction-drum, of a brake-band, S, the leverT, the rod (1, and the tensioiradjusting nut substantially as hereinshown and described, and for the purpose set forth.

5. The combination, with a friction-drum for a cable, of a cog-wheelunited with the said drum, and of a pinion mounted on a shaft that canbe rotated, which pinion is adapted to be engaged with the eog-wheel,substantially as pose set forth.

6. The combination, with a friction-drum for a cable, of a cog-wheelunited with the said drum, of a pinion mounted on a shaft that can berotated, and devices for engaging the pinion with the said cog-whee],substantially as herein shown and described, and for the purposes setforth.

7. The combination, with the cable-drum A, of the cog-wheel F, unitedwith the same, the shaft J, provided with devices for turning it, thesleeve H, the pinion G, mounted thereon, and devices for verticallyadjusting the said sleeve, substantially as herein shown and described,and for the purpose set forth.

8. The eo1nbinati0n,with the cable-drum A, of the cog-wheel F, unitedwith the same, the shaft J, provided with devices for turning it, thesleeve II, the pinion G, the lever M, the ratchet-wheel Q, and the pawlR, substantially as herein shown and described, and for the purpose setforth.

' EARLE C. BACON. Wit nesses:

Osoiin F. GUNZ, C. SEDGWICK.

